Usage:
AP-1055B (8BM391-393, 397, 8BM399-Up, ABB174-Up),
AP-1050B (6ZN192-Up),
AP-1000B (7HN212-Up),
AP-650B (9DN320-Up),
BG-2455C (6TN141-Up, ACM246-Up),
BG-245C (4XN123-Up),
BG-260C (8GN536-Up),
BG-225C (5GN460-Up) Asphalt Pavers
- SUPPLEMENT: APRIL 19, 1999
Service Magazine SEPD0458, Article 24, Page 29, February 15, 1999; "Purging Lines Have Been Added To Conveyor Lines Group".
On Page 29 of the article, the chart of bill of material and the line art are incorrect. Below is the corrected chart and line art, as well as a caption added at the bottom of the line art.
Illustration 1.-
- (A) Assemble hoses and install on the port that is 90 degrees from the LS port, as Illustration 3 shows. Hoses must then be clamped as shown.
--------------- END SUPPLEMENT ---------------
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Purging lines have been added to the 115-8335, 104-7456 and 115-2278 Conveyor Lines Groups to aid in purging air from the conveyor system. The lines were added to the 154-1424 Manifold. The serial numbers listed above have the parts listed in the bills of material below added to the left hand and right hand conveyor manifolds.
These hose assemblies are adaptable to serial numbers lower than the serial numbers previously listed and 115-0060 Manifold. These hoses can be added to aid in purging air from the system. To do this, use the following bill of materials for the appropriate machine and assemble according to the illustrations below.
Bill of Material for AP-1055B/BG-2455C, AP-1050B/BG-245C and AP-1000B/BG-260C Machines
NOTE: This bill of material is for both manifolds on these machines. Use Illustrations 1 and 3 to assemble.
Illustration 1
Bill of Material for AP-650B/BG-225C Machines
NOTE: This bill of material is for both manifolds on these machines. Use Illustrations 2 and 3 to assemble.
Illustration 2
Illustration 3
After the hoses have been installed, the conveyor system must be purged. Use the procedure below for all machines.
After the hoses have been installed, the conveyor system must be purged of air. Use the following procedure for the AP-1055B/BG-2455, AP-1000B/BG-260C, AP-1050B/BG-245C and AP-650B/BG-225C.
Removing Air from the Conveyor Control Valve Circuit
NOTE: The following photos are of the AP-650B/BG-225C for reference and are similar to all machines listed above. The procedure is good for all machines listed above.
NOTE: The conveyor circuits are very sensitive to air. Air in the systems will cause jerky, erratic auger conveyor and drag conveyor operation.
Pump Compartment on Right Side of Machine
1. Assemble a hydraulic hose, female quick disconnect fitting and a hand shutoff valve. (Hose should be long enough so you can run it back to the hydraulic tank from the pump compartment.)
2. Attach hose to the quick disconnect on the new purging hose installed on the right hand control manifold.
3. Start the engine.
4. Engage the parking brake.
5. Open hand shutoff valve and slowly allow hydraulic oil to flow into the hydraulic tank or a suitable container until the line is purged of air. Typically, approximately 0.946 L (1 qt) of fluid is required or until oil runs clear.
6. Close the hand shutoff valve. Stop the engine.
7. Remove hose from quick disconnect.
8. Attach hose to quick disconnect (1) on the right hand conveyor pump (3).
9. Repeat Steps 3, 4, 5, 6 and 7.
Hydraulic Tank Compartment Below Floor Panel
Conveyor Control Valve Group
10. Move back to right side control valve (4).
NOTE: Screws (11) on the solenoids (7) and (9) can either be Allen screws or Hex screws.
11. With the machine off, remove the Allen/Hex screw (11) on the solenoids (7) and (9) that will be purged.
12. Reseat the o-ring that was under the screws (11). Reinstall the screws (11) two turns back into solenoids (7) and (9).
13. Start the engine with parking brake engaged and conveyor and auger switches in AUTO, propel lever forward, switch in PAVE mode and speed dial at halfway.
14. Drain oil into suitable container. Tighten screws (11) after air is purged and oil runs clear. This process should take only a short span of time to purge the valves.
15. Stop engine.
16. For recent machines, test port fittings 110-6349 Nipple, 3J-7345 O-ring and 6V-0852 Dust Cover have been added to the G1 (10) and G2 (8) test ports. If the machine does not have these fittings, the fittings must be installed in ports G1 and G2.
17. Use the same hose assembly as in the removing air from the conveyor control valve and install in the G2 auger port.
18. Start the engine, go to full throttle, turn the right auger to AUTO, propel lever forward, parking brake engaged and in PAVE mode.
19. Slowly open the hand gate valve and drain oil into the tank or a suitable container until the oil runs clear.
NOTE: If valve gate is opened too quickly, auger will stop.
20. Repeat Steps 17, 18 and 19 for the feeder system G1 port. Put the feeder switch in AUTO and the auger switch in AUTO.
NOTE: The feeder will not run in auto unless the auger switch is in auto also.
21. Move to the left side of the machine and repeat Steps 2 through 20 for the left control manifold and pump.
22. Check the speed of the augers and feeders using the 1U-6602 Phototach and reflective tape. The auger speed should be 155 ± 5 RPM at the auger shaft. The feeder should run at 105 ± 3 RPM checked at the planetary output shaft. This speed is for the AP-1055B/BG-2455C, AP-1050B/BG-245C and AP-1000B/BG-260C. (Note: Some machines may be equipped with the ability to calibrate a lower auger speed.) The AP-650B/BG-225C should have a auger speed of 120 ± 5 RPM at the auger shaft and the feeder should run at 52 ± 3 RPM checked at the planetary output shaft. To calibrate the speed, refer to KENR2861 calibration of C17 and C18.
NOTE: The calibration procedure in KENR2861 was written for the AP-650B/BG-225C, but with recent software updates to the other machines this calibration procedure is adaptable to all machines with this updated software.
23. The auger should perform smoothly through the entire range of the material sensor paddle or sonic sensor. If the auger performance is not smooth or the auger and feeder speeds are not correct, the feeder valve pressure differential adjustment needs to be performed. For this procedure refer to KENR3506 (for 7HN, 8GN), KENR2895 (for 8BM, 6ZN), KENR2907 (for 6TN, 4XN) and KENR3555 (for 9DN, 5GN).